Effect of Ammonia Reaction Time on the Calytic Poperties of Sputtered Iron-Based Electrocatalyst

Title
Effect of Ammonia Reaction Time on the Calytic Poperties of Sputtered Iron-Based Electrocatalyst
Authors
주현철
Issue Date
2013
Publisher
JAPANESE JOURNAL OF APPLIED PHYSICS
Series/Report no.
JAPANESE JOURNAL OF APPLIED PHYSICS; vol.52 startpage 1/10MC14 endpage 3/10MC14
Abstract
Fe-based electrocatalysts for polymer electrolyte membrane fuel cells (PEMFCs) were produced using a sputter deposition process involving a carbon paper (CP) and a NH3 heat treatment environment. The Fe?N?CP sample reacted with ammonia for 10 min at 950 C displayed a greater current density than the samples reacted with ammonia for other reaction times. The impedance of the samples treated for 10 min with ammonia shows the highest value, which means much higher ligand formation and lower electric conductivity, which are consistent with the results of cyclic voltammetry (CV). This is directly due to the formation of ligands between the Fe and CP used when exposed to a nitrogen environment. While the current density of the Fe-based electrocatalysts under review did not exceed that of standard Pt/C electrocatalysts, the results herein suggest that nonprecious metal electrodes may be a viable alternative in PEMFCs.
URI
http://dx.doi.org/10.7567/JJAP.52.10MC14
http://dspace.inha.ac.kr/handle/10505/31605
ISSN
0021-4922
Appears in Collections:
College of Engineering(공과대학) > Mechanical Engineering(기계공학) > Local Access Journal Papers, Reports(기계공학 논문, 보고서)

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